Scosche Efx

My sound system isn't hitting as hard as it was, why?

Use to hit pretty hard, but a few days ago it seemed to reduce greatly. Any possible solutions would be great. I am not 100% sure on what watt the amp is, it's a SCOSCHE EFX amp. It's pushing 2 10" MTX Road Thunder subs 400W peak. It was profesionally installed and sounded great till here recently. It still hits just not as much as before. I don't know if it maybe a fuse, wires, blown speaker, or what. The reciever is a stock reciever in my 2007 Tundra. The also installed a bass meter, i don't think that's the actual name for it but it's what i know it by, it allows me to turn the bass up and down without having to change it on the reciever. Any help would be great.

im sure your cranking it up and putting a lot of strain on your alternator. This happens to me a lot once my subs start sounding less loud i know my alternator is having a hard time keeping up charging the battery.

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